File name: Pandora247s1_WhittierCA_20250505_L2Fit_fout2c6d20230505p1-8.txt File generation date: 20250506T075820.8Z Data description: Level 2 spectral fitting results file Data file version: fout2c6p1-8 Local principal investigator: Peter Peterson Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 247 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora247_OF_v2d20221027.txt Instrument calibration file used: Pandora247s1_CF_v6d20230505.txt Level 1 file used: Pandora247s1_WhittierCA_20250505_L1_smca1c6d20230505p1-8.txt Full location name: Whittier College SLC Short location name: WhittierCA Country of location: United States Location latitude [deg]: 33.9768 Location longitude [deg]: -118.0299 Location altitude [m]: 130 Local noon date: 20250505 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method) Data caveats: Modification of session 5 "based on session 2 trying to improve labcal" First and last pixel inside fitting window: 195 336 Nominal wavelengths inside fitting window [nm]: 305.1400 305.2810 305.4219 305.5629 305.7038 305.8447 305.9856 306.1265 306.2673 306.4082 306.5491 306.6899 306.8307 306.9715 307.1124 307.2531 307.3939 307.5347 307.6755 307.8162 307.9569 308.0977 308.2384 308.3791 308.5198 308.6605 308.8011 308.9418 309.0824 309.2231 309.3637 309.5043 309.6449 309.7855 309.9260 310.0666 310.2072 310.3477 310.4882 310.6287 310.7692 310.9097 311.0502 311.1907 311.3311 311.4716 311.6120 311.7524 311.8929 312.0333 312.1736 312.3140 312.4544 312.5947 312.7351 312.8754 313.0157 313.1560 313.2963 313.4366 313.5769 313.7171 313.8574 313.9976 314.1379 314.2781 314.4183 314.5585 314.6986 314.8388 314.9790 315.1191 315.2592 315.3993 315.5395 315.6796 315.8196 315.9597 316.0998 316.2398 316.3799 316.5199 316.6599 316.7999 316.9399 317.0799 317.2198 317.3598 317.4997 317.6397 317.7796 317.9195 318.0594 318.1993 318.3391 318.4790 318.6188 318.7587 318.8985 319.0383 319.1781 319.3179 319.4577 319.5974 319.7372 319.8769 320.0167 320.1564 320.2961 320.4358 320.5755 320.7151 320.8548 320.9944 321.1341 321.2737 321.4133 321.5529 321.6925 321.8321 321.9716 322.1112 322.2507 322.3902 322.5298 322.6693 322.8087 322.9482 323.0877 323.2271 323.3666 323.5060 323.6454 323.7848 323.9242 324.0636 324.2030 324.3424 324.4817 324.6210 324.7604 324.8997 --------------------------------------------------------------------------------------- Column 1: Two letter code of measurement routine Column 2: UT date and time for center-time of measurement, yyyymmddThhmmssZ (ISO 8601) Column 3: Fractional days since 1-Jan-2000 midnight for center-time of measurement Column 4: Routine count (1 for the first routine of the day, 2 for the second, etc.) Column 5: Repetition count (1 for the first set in the routine, 2 for the second, etc.) Column 6: Total duration of measurement set in seconds Column 7: Data processing type index Column 8: Solar zenith angle for center-time of measurement in degree Column 9: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 10: Lunar zenith angle for center-time of measurement in degree Column 11: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 12: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used Column 13: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon Column 14: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used Column 15: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4) Column 16: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error Column 17: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done Column 18: rms of unweighted fitting residuals, -9=fitting not successful Column 19: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used Column 20: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 21: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 22: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 24: Structured uncertainty of ozone slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 25: Common uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 26: rms-based uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 27: Ozone effective temperature [K] Column 28: Independent uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 29: Structured uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 30: Common uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 31: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for ozone [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 35: Structured uncertainty of sulfur dioxide slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 36: Common uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 37: rms-based uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 38: Sulfur dioxide effective temperature [K] Column 39: Independent uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 40: Structured uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 41: Common uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 42: Effective sulfur dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for sulfur dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 45: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 46: Lower limit used for wavelength scaling [nm] Column 47: Upper limit used for wavelength scaling [nm] Column 48: Order of smoothing polynomial Column 49: Smoothing polynomial coefficient, order 0 Column 50: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 51: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 52: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 53: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 54: Smoothing polynomial coefficient, order 1 Column 55: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 56: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 57: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 58: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 59: Smoothing polynomial coefficient, order 2 Column 60: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 61: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 62: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 63: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 64: Smoothing polynomial coefficient, order 3 Column 65: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 66: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 67: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 68: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 69: Mean value of measured data inside fitting window [same units as measurements] Column 70: Wavelength change polynomial coefficient, order 0 Column 71: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 72: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 76: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 77: L2Fit data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 78: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ1 limit, 0=L1 data quality above 0, 1=Spectral fitting was not successful, 2=Wavelength shift too large, 3=Normalized rms of fitting residuals weighted with independent uncertainty too large Column 79: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 80: L1 data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 81: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ1 limit, 0=Saturated data, 1=Too few dark counts measurements, 2=No temperature given or effective temperature too different from the reference temperature, 3=Dark count too high, 4=Unsuccessful dark background fitting, 5=The dark count differs significantly from the dark map for too many pixels, 6=Absolute value of estimated average residual stray light level too high, 7=Although attempted, no wavelength change could be retrieved, 8=Absolute value of retrieved wavelength shift too large, 9=Retrieved wavelength shift differs too much from the shift predicted by the effective temperature Column 82: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 83: Atmospheric variability [%], 999=no atmospheric variability was determined Column 84: Wavelength effective temperature [°C], 999=no effective temperature given Column 85: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 86: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 87: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 88: Number of bright count cycles Column 89: Number of dark count cycles Column 90: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 91: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 92: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 93: Integration time [ms] Column 94: Temperature at electronics board [°C], 999=no temperature signal Column 95: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: Normalized slant column residuals weighted with independent instrumental uncertainty for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting, 0=no independent instrumental uncertainty was given --------------------------------------------------------------------------------------- SS 20250505T152217.8Z 9256.640484 150 1 12.07 2 61.73 88.56 131.91 6.99 0.00 1 0.00 1 0 17 1.602e-02 6.415e-03 1.079e-02 2.999e-03 3.445207e-01 1.586644e-03 3.891464e-03 -6.000000e+00 9.667517e-03 230.55 -2.00 3.36 -2.00 317.43 0.00e+00 3.211944e-04 2.421998e-04 1.173801e-04 -6.000000e+00 4.303365e-04 286.22 -2.00 20.00 -2.00 316.64 0.00e+00 2.101 0.000 302.00 328.00 3 3.8353e+00 4.2130e-03 2.7038e-02 -6.0000e+00 2.4131e-02 2.5139e-03 4.7285e-03 1.7049e-02 -6.0000e+00 2.6052e-02 -1.4634e-02 2.8707e-03 8.3134e-03 -6.0000e+00 1.5517e-02 1.4848e-03 1.4227e-03 2.3136e-03 -6.0000e+00 6.5797e-03 9.2001e-04 2.2542e-04 9.1610e-05 2.8034e-05 -6.0000e+00 4.8458e-04 -2.3614e-03 -7.7533e-05 12 9 1 12 1 1 99.25 24.81 0.31 -0.00236 -0.00067 7 4 1 5 0 1507.913 33.00 20.00 24.81 20.95 33.7 996.47 -7567 808 1886 -6149 -5213 -2303 -4668 -5687 89 -5185 -2292 -3003 -1811 -1124 1035 2404 -667 1918 1262 -213 401 1271 1503 1485 1698 -1730 -2338 -1086 195 -1568 1702 1195 -498 -3445 -2879 -822 474 140 543 -689 -775 -395 -2668 139 989 122 426 -21 -1015 -113 -359 1144 1483 334 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-1298 SS 20250505T152631.9Z 9256.643425 153 1 29.66 2 60.85 89.14 131.81 8.30 0.00 1 0.00 1 0 17 1.886e-02 8.293e-03 1.317e-02 3.120e-03 3.300990e-01 1.642347e-03 3.716363e-03 -6.000000e+00 1.138302e-02 230.55 -2.00 3.36 -2.00 317.72 0.00e+00 9.741480e-04 2.735927e-04 9.811469e-05 -6.000000e+00 5.065387e-04 286.22 -2.00 20.00 -2.00 316.94 0.00e+00 2.043 0.000 302.00 328.00 3 4.7832e+00 4.3908e-03 2.6168e-02 -6.0000e+00 2.8414e-02 4.7848e-03 4.9456e-03 1.6462e-02 -6.0000e+00 3.0673e-02 -6.3195e-03 3.0578e-03 7.9865e-03 -6.0000e+00 1.8269e-02 -2.7575e-03 1.5385e-03 2.4153e-03 -6.0000e+00 7.7487e-03 3.8287e-04 5.5468e-04 9.5914e-05 2.7736e-05 -6.0000e+00 5.7044e-04 -2.9504e-03 -3.5770e-05 12 9 1 12 1 1 99.98 24.82 0.29 -0.00295 0.00122 11 2 1 5 0 2470.951 33.00 20.00 24.82 21.37 33.8 997.03 735 1286 -4888 -10840 -4165 1777 -1907 -2694 -6687 -3723 2871 -5089 -955 -2692 167 -1611 2342 2798 482 1423 -2182 970 -1280 2116 455 -2953 28 1892 -945 -1076 -286 1477 -317 -2431 -2510 371 -1810 -1838 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-176 -64 -525 -310 494 471 692 -438 -401 369 935 860 722 259 825 974 1083 222 -516 -861 -515 424 366 188 518 219 188 -387 -879 -1596 SS 20250505T174732.7Z 9256.741351 231 1 17.08 2 32.33 115.17 119.18 45.93 0.00 1 0.00 1 0 17 8.458e-03 6.530e-03 2.138e-03 1.456e-03 1.962642e-01 7.800071e-04 2.260814e-03 -6.000000e+00 5.104755e-03 230.56 -2.00 3.36 -2.00 315.02 0.00e+00 3.716659e-04 6.788497e-05 2.051832e-05 -6.000000e+00 2.271768e-04 286.23 -2.00 20.00 -2.00 314.36 0.00e+00 1.183 0.000 302.00 328.00 3 4.0175e+00 2.0066e-03 1.5285e-02 -6.0000e+00 1.2742e-02 -2.5077e-03 2.2202e-03 9.6736e-03 -6.0000e+00 1.3756e-02 -4.6641e-03 1.2705e-03 4.7130e-03 -6.0000e+00 8.1930e-03 -2.7313e-03 5.5834e-04 1.3215e-03 -6.0000e+00 3.4748e-03 2.3903e-03 4.1122e-04 4.4629e-05 1.9196e-05 -6.0000e+00 2.5582e-04 -3.1281e-03 -5.4397e-05 12 9 1 12 1 1 99.93 25.03 0.31 -0.00313 -0.00004 18 6 1 5 0 898.499 33.25 20.00 25.03 27.07 34.2 995.74 -1172 196 -1707 -2910 -1812 354 978 1105 254 -1527 -1522 -344 251 -217 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